This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A church of bones, decorated with 40,000 human skeletons.

An enormous and lavish Gothic church in Czechia.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A fake Transylvanian castle houses a cathedral of antlers.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Once the home of a hermetic monk, this cave now houses a small church.